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Nonlinear Optics

Quantum correlation among spectral modes of ultra-broadband pulses generated by nonlinear optics in microstructure fibers

F. Kannari, Kenichi Hirosawa, H. Furumochi, Montian Tianprateep, J. Tada, Atsushi Tada, Masahiro Takeoka, Masataka Nakazawa

Published Jan 1, 2004• 0 citations
Publisher

Abstract

Quantum correlation in broadband spectra generated with a microstructure fiber is experimentally and theoretically studied. Synthesis of quantum correlation among the spectral modes in ultra-broadband pulses through manipulating nonlinear optics in fibers is discussed.
DOI
10.1364/nlo.2004.wd2

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To the best of our knowledge, we demonstrate for the first time the generation of photon number squeezing by spectral filtering for ultrabroadband light generated by microstructure fibers at 800 nm. A maximum squeezing of 4.6 dB is observed, corresponding to 10.3 dB after correcting for detection losses. We numerically analyzed the quantum dynamics of ultrashort laser pulse propagation through optical fibers by solving a nonlinear quantum Schrödinger equation that included Raman scattering, especially for the quantum correlation of photon number fluctuation among frequency modes in broadband pulses.